A study on radial flow field for extrusion through conical dies |
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| Authors: | Kozo Osakada |
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| Affiliation: | Department of Production Engineering, Kobe University, Rokko, Nada, Kobe, Japan;Department of Mechanical Engineering, Kyoto University, Kyoto, Japan |
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| Abstract: | A generalized expression for the radial flow field for extrusion through a conical die is suggested. The upper bound to the extrusion pressure for a rigid-perfectly plastic material is obtained. Other energy methods which include solutions for work-hardening and composite billets are also obtained for the generalized radial flow field. The results are used to analyse the hydrostatic extrusion of Al, Cu and Al-Cu composite billets. The extrusion pressure and hardness distribution of the product were measured in experiments and they are compared with theoretical results. |
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